COLLIMATOR ARRANGEMENT

摘要

The present invention relates to A beam collimator arrangemnt for scanned-slot x-ray imaging (22, 32) consisting of one or serveral collimators in an x-ray apparatus (20, 30), comprising: an x-ray source (21, 31); an x-ray image receiver (25, 35) positioned to receive x-rays from the x-ray source (21, 31); means (23, 24; 33; 34) for compressing a female breast (36) to be examined, said means being positionable between the x-ray source and the x-ray image receiver; and said beam collimator positioned between the x-ray source and the means for compressing tissue. The beam collimator arrangement (22, 32) is arranged on a carrying structure (39) to displace the beam collimator arrangment (22, 32) is arranged on a carrying structure (39) to displace the beam collimator arrangement betwen a first position (P) when no x-ray exposure is conducted and a second position (A) before x-ray exposure is initiated.